Amiga ACS 1998 #6/amigaacscoverdisc1998-061998.iso/games/descent/source/main/text.c

C/C++ Source or Header | 1998-06-08 | 5KB | 197 lines

/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
*/
/*
 * $Source: f:/miner/source/main/rcs/text.c $
 * $Revision: 2.0 $
 * $Author: john $
 * $Date: 1995/02/27 11:33:09 $
 *
 * Code for localizable text
 *
 * $Log: text.c $
 * Revision 2.0  1995/02/27  11:33:09  john
 * New version 2.0, which has no anonymous unions, builds with
 * Watcom 10.0, and doesn't require parsing BITMAPS.TBL.
 *
 * Revision 1.11  1994/12/14  12:53:23  matt
 * Improved error handling
 *
 * Revision 1.10  1994/12/09  18:36:44  john
 * Added code to make text read from hogfile.
 *
 * Revision 1.9  1994/12/08  20:56:34  john
 * More cfile stuff.
 *
 * Revision 1.8  1994/12/08  17:20:06  yuan
 * Cfiling stuff.
 *
 * Revision 1.7  1994/12/05  15:10:36  allender
 * support encoded descent.tex file (descent.txb)
 *
 * Revision 1.6  1994/12/01  14:18:34  matt
 * Now support backslash chars in descent.tex file
 *
 * Revision 1.5  1994/10/27  00:13:10  john
 * Took out cfile.
 *
 * Revision 1.4  1994/07/11  15:33:49  matt
 * Put in command-line switch to load different text files
 *
 * Revision 1.3  1994/07/10  09:56:25  yuan
 * #include <stdio.h> added for FILE type.
 *
 * Revision 1.2  1994/07/09  22:48:14  matt
 * Added localizable text
 *
 * Revision 1.1  1994/07/09  21:30:46  matt
 * Initial revision
 *
 *
 */


#pragma off (unreferenced)
static char rcsid[] = "$Id: text.c 2.0 1995/02/27 11:33:09 john Exp $";
#pragma on (unreferenced)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>

//#include "cfile.h"
#include "cfile.h"
#include "mem.h"
#include "error.h"

#include "inferno.h"
#include "text.h"
#include "args.h"
#include "compbit.h"

char *text;

char *Text_string[N_TEXT_STRINGS];

free_text()
{
    free(text);
}

// rotates a byte left one bit, preserving the bit falling off the right
void
encode_rotate_left(char *c)
{
    int found;

    found = 0;
    if (*c & 0x80)
        found = 1;
    *c = *c << 1;
    if (found)
        *c |= 0x01;
}

//load all the text strings for Descent
void load_text()
{
    CFILE  *tfile;
    CFILE *ifile;
    int len,i, have_binary = 0;
    char *tptr;
    char *filename="descent.tex";

    if ((i=FindArg("-text"))!=0)
        filename = Args[i+1];

    if ((tfile = cfopen(filename,"rb")) == NULL) {
        filename="descent.txb";
        if ((ifile = cfopen(filename, "rb")) == NULL)
            Error("Cannot open file DESCENT.TEX or DESCENT.TXB");
        have_binary = 1;

        len = cfilelength(ifile);

        //MALLOC(text,char,len);//Won't compile... working on it..-KRB
        text=malloc(len*sizeof(char));//my hack -KRB
        atexit(free_text);

        cfread(text,1,len,ifile);

        cfclose(ifile);

    } else {
        int c;
        char * p;

        len = cfilelength(tfile);

        //MALLOC(text,char,len);//Won't compile... working on it..-KRB
        text=malloc(len*sizeof(char));//my hack -KRB

        atexit(free_text);

        //fread(text,1,len,tfile);
        p = text;
        do {
            c = cfgetc( tfile );
            if ( c != 13 )
                *p++ = c;
        } while ( c!=EOF );

        cfclose(tfile);
    }

    for (i=0,tptr=text;i<N_TEXT_STRINGS;i++) {
        char *p;

        Text_string[i] = tptr;

        tptr = strchr(tptr,'\n');

        if (!tptr)
            Error("Not enough strings in text file - expecting %d, found %d",N_TEXT_STRINGS,i);

        if ( tptr ) *tptr++ = 0;

        if (have_binary) {
            for (p=Text_string[i]; p < tptr - 1; p++) {
                encode_rotate_left(p);
                *p = *p ^ BITMAP_TBL_XOR;
                encode_rotate_left(p);
            }
        }

        //scan for special chars (like \n)
        for (p=Text_string[i];p=strchr(p,'\\');) {
            char newchar;

            if (p[1] == 'n') newchar = '\n';
            else if (p[1] == 't') newchar = '\t';
            else if (p[1] == '\\') newchar = '\\';
            else
                Error("Unsupported key sequence <\\%c> on line %d of file <%s>",p[1],i+1,filename);

            p[0] = newchar;
            strcpy(p+1,p+2);
            p++;
        }

    }

//    Assert(tptr==text+len || tptr==text+len-2);

}